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ISL85403

Renesas
Part Number ISL85403
Manufacturer Renesas
Description 2.5A Regulator
Published Jun 18, 2019
Detailed Description DATASHEET ISL85403 2.5A Regulator with Integrated High-side MOSFET for Synchronous Buck or Boost Buck Converter FN8631...
Datasheet PDF File ISL85403 PDF File

ISL85403
ISL85403

Overview
DATASHEET ISL85403 2.
5A Regulator with Integrated High-side MOSFET for Synchronous Buck or Boost Buck Converter FN8631 Rev 2.
00 Mar 11, 2019 The ISL85403 is a 40V, 2.
5A synchronous buck or boost buck controller with an integrated high-side MOSFET and low-side driver.
In Buck mode, the ISL85403 supports a wide input range of 3V to 40V.
In Boost-Buck mode, the input range can be extended down to 2.
5V and output regulation can be maintained when VIN drops below VOUT, enabling sensitive electronics to remain on in low input voltage conditions.
The ISL85403 has a flexible selection of Forced PWM mode and PFM mode.
In PFM mode, the quiescent input current is as low as 180µA (AUXVCC connected to VOUT).
The load boundary between PFM and PWM can be programmed to cover wide applications.
The low-side driver can either be used to drive an external low-side MOSFET for a synchronous buck or left unused for a standard non-synchronous buck.
The low-side driver can also be used to drive a boost co...


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